Marine scientist Dr Dean Miller said GBR Legacy wanted to offer DiCaprio a trip with "no political or media spin".

"All of us at the GBR Legacy live and breath the Great Barrier Reef every single day, and are seeing first hand the damage that climate change is doing here," Miller said in the invitation.

"We know you care and we know you want to inspire people to stand up and take action, just like we do.

"We would like to take you to the Great Barrier Reef and show you first hand what we see, no political or media spin, just the facts from the scientists themselves to show you what is really happening here."

Aroona Luxury Charters is putting up $54,000 to fund the free trip for the Hollywood star and the region's best marine scientists

DiCaprio is yet to respond to the invitations but if we were him, we'd be diving in like: